diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/R600/SIInstrInfo.cpp | 22 | ||||
| -rw-r--r-- | llvm/lib/Target/R600/SIInstrInfo.h | 4 |
2 files changed, 26 insertions, 0 deletions
diff --git a/llvm/lib/Target/R600/SIInstrInfo.cpp b/llvm/lib/Target/R600/SIInstrInfo.cpp index 03e25e60f94..17afd831a84 100644 --- a/llvm/lib/Target/R600/SIInstrInfo.cpp +++ b/llvm/lib/Target/R600/SIInstrInfo.cpp @@ -260,6 +260,28 @@ bool SIInstrInfo::getLdStBaseRegImmOfs(MachineInstr *LdSt, return false; } +bool SIInstrInfo::shouldClusterLoads(MachineInstr *FirstLdSt, + MachineInstr *SecondLdSt, + unsigned NumLoads) const { + unsigned Opc0 = FirstLdSt->getOpcode(); + unsigned Opc1 = SecondLdSt->getOpcode(); + + // TODO: This needs finer tuning + if (NumLoads > 4) + return false; + + if (isDS(Opc0) && isDS(Opc1)) + return true; + + if (isSMRD(Opc0) && isSMRD(Opc1)) + return true; + + if ((isMUBUF(Opc0) || isMTBUF(Opc0)) && (isMUBUF(Opc1) || isMTBUF(Opc1))) + return true; + + return false; +} + void SIInstrInfo::copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, DebugLoc DL, diff --git a/llvm/lib/Target/R600/SIInstrInfo.h b/llvm/lib/Target/R600/SIInstrInfo.h index e1b00388d14..390cc7073e1 100644 --- a/llvm/lib/Target/R600/SIInstrInfo.h +++ b/llvm/lib/Target/R600/SIInstrInfo.h @@ -70,6 +70,10 @@ public: unsigned &BaseReg, unsigned &Offset, const TargetRegisterInfo *TRI) const final; + bool shouldClusterLoads(MachineInstr *FirstLdSt, + MachineInstr *SecondLdSt, + unsigned NumLoads) const final; + void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, DebugLoc DL, unsigned DestReg, unsigned SrcReg, |
